.room{
    margin-top: 20px;
    margin-left: 50px;
}
.newAdd{
    margin-top: 30px;
    margin-left: 230px;
    margin-bottom: 10px;
}
#class{
    margin-left: 210px;

}
span{
    margin-left: 20px;
    margin-right: 8px;

}
.txt,#no,#day{
    width: 80px;
}
.txt1{
    width: 115px;
}
.showTable{
    margin-top: 20px;
    margin-left: 220px;
    text-align: center;
}
th{
    width: 90px;
}
.course{
    width:200px
}
.del{
    width: 90px;
    height: 30px;
}
.add{
    margin-right: 50px;
    float: right;
    margin-top: -25px;
}
.detail{
    margin-left: 20px;
    margin-top: 8px;
    width: 300px;
    height: 100px;
}
.add1{
    margin-left: 20px;
    /* margin-top: 15px; */
}